2018 BMW 2 Series WHEELS

I HAVE A 2018 2 SERIES XDRIVE CONVERTIBLE WITH 18' PIRELLI RUN FLAT TIRES. THIS IS MY SECOND 2 SERIES. I HAVE HAD 6 OF THESE TIRES BLOW DUE TO POTHOLES OVER THE TWO CARS I HAVE HAD OVER 4 YEARS. THE LAST ONE THAT BLEW WAS ON FRIDAY ON I65 JUST SOUTH OF LOUISVILLE. I HAD TO WAIT 4 HOURS FOR TOW TRUCK TO TAKE IT TO BMW OF LOUISVILLE. I PROCEEDED ONTO NASHVILLE. I PICKED THE CAR UP ON THE FOLLOWING MONDAY. THE TIRES ARE 18' PIRELLI CINTURATO P7 A S RFT RUN FLAT. THIS IS A CHRONIC PROBLEM WITH THIS CAR. MY BMW SERVICE PERSON SAYS THIS HAPPENS SO OFTEN WITH THESE CARS. THIS BLOWOUT PATTERN IS NOT ACCEPTABLE. I NEED NOT TO BE TO BE WORRIED ALL THE TIME THAT A TIRE IS GOING TO BLOW WHEN A POTHOLE IS HIT. ESPECIALLY ON THE HIGHWAY. I MUST GET THEM CHANGED. I THINK THIS COULD BE A DEADLY PROBLEM. IT SHOULD BE LOOKED INTO BY NHTSA.